/*
 * Copyright 2012-2024 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.cloud.bus;

import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.cloud.bus.endpoint.ShutdownBusEndpoint;
import org.springframework.cloud.bus.event.Destination;
import org.springframework.cloud.bus.event.ShutdownListener;
import org.springframework.context.ApplicationEventPublisher;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * @author Ryan Baxter
 */
@Configuration(proxyBeanMethods = false)
@ConditionalOnBusEnabled
public class BusShutdownAutoConfiguration {

	@Bean
	@ConditionalOnProperty(value = "spring.cloud.bus.shutdown.enabled", matchIfMissing = true)
	@ConditionalOnMissingBean
	public ShutdownListener shutdownListener(ServiceMatcher serviceMatcher) {
		return new ShutdownListener(serviceMatcher);
	}

	@Configuration(proxyBeanMethods = false)
	@ConditionalOnClass(name = { "org.springframework.boot.actuate.endpoint.annotation.Endpoint" })
	protected static class BusShutdownEndpointConfiguration {

		@Bean
		public ShutdownBusEndpoint shutdownBusEndpoint(ApplicationEventPublisher publisher, BusProperties bus,
				Destination.Factory destinationFactory) {
			return new ShutdownBusEndpoint(publisher, bus.getId(), destinationFactory);
		}

	}

}
